Method for performing mobility process of nb-iot terminal, and apparatus therefor

Active Publication Date: 2019-11-21
KT CORP
View PDF0 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0014]The above-described present disclosure is advantageous in that an NB-IoT terminal having low unit price and low power requirements can quickly resume a service even when a service interruption occurs according to the movement o

Problems solved by technology

For example, unlike a typical LTE terminal, an IoT terminal is not supported by handover technology.
Also, an IoT terminal does not perform an operation of measuring a channel state of a channel connected thereto and periodically delivering the same to a base station.
Accordingly, even when an IoT terminal moves and leaves the coverage of a base station or when a radio state is seriously degraded, a base station d

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for performing mobility process of nb-iot terminal, and apparatus therefor
  • Method for performing mobility process of nb-iot terminal, and apparatus therefor
  • Method for performing mobility process of nb-iot terminal, and apparatus therefor

Examples

Experimental program
Comparison scheme
Effect test

Example

First Embodiment: Method for Receiving Assistance / Indication Information from Terminal and Performing RRC Connection Suspend

[0089]When a terminal is characterized by infrequent data transmission, low-latency sensitivity, low cost, and low power consumption, if the relevant terminal is connected to a network in order to transmit data and a connected state lasts for a long time even after the data transmission is finished, this situation causes power consumption of the terminal and thus may not be desired.

[0090]When a terminal is connected to a network in order to transmit data in an application / higher layer and then the data transmission is completed, the terminal may transmit assistance information on completion of data transmission to a base station through an RRC message. Alternatively, the terminal may transmit indication information indicating / suggesting an RRC connection suspend through an RRC message.

[0091]A base station may broadcast, through system information, information o...

Example

Second Embodiment: Method for Receiving Assistance / Indication Information from MME and Performing RRC Connection Suspend

[0098]When a terminal is characterized by infrequent data transmission, low-latency sensitivity, low cost, and low power consumption, if the relevant terminal is connected to a network in order to transmit data and a connected state lasts for a long time even after the data transmission is finished, this situation causes power consumption of the terminal and thus may not be desired.

[0099]For example, when a terminal is connected to a network in order to transmit data in an application / higher layer and then the data transmission is completed, the terminal may transmit assistance information on completion of data transmission to an MME through a NAS message. Alternatively, the terminal may transmit indication information indicating / suggesting an RRC connection suspend through a NAS message.

[0100]The above-described assistance information may include information inclu...

Example

Third Embodiment: Method for Improving and Supporting at Least One of Measurement, Reporting, and Handover Supported for Typical Terminal

[0110]An NB-IoT terminal may employ at least one of mobility procedures including a measurement configuration, a reporting configuration, and a handover command according to the control of a base station similar to a typical connected terminal.

[0111]However, when the NB-IoT terminal employs mobility support procedures, including measurement, reporting, a handover, and the like, like a typical connected terminal, power consumption of the NB-IoT terminal is increased. Accordingly, it may be difficult to satisfy low power requirements of the NB-IoT terminal. In order to reduce increment in power consumption of the terminal, the base station may simplify a mobility procedure-related configuration.

[0112]For example, a measurement configuration may be simplified. The base station may configure a filtering coefficient of a measurement quantity, used to co...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

Provided are a method and an apparatus for a NarrowBand-Internet of Things (NB-IoT) terminal to perform a mobility process. The method may include: transmitting an RRC connection re-establishment request message to a base station when a pre-set event occurs; receiving an RRC connection re-establishment message from the base station; and resuming a signaling radio bearer on the basis of the RRC connection re-establishment message.

Description

TECHNICAL FIELD[0001]The present disclosure relates to a method and an apparatus for handling mobility of a NarrowBand-Internet of Things (NB-IoT) terminal, and more specifically, to a method and an apparatus for maintaining service continuity for an NB-IoT terminal.BACKGROUND ART[0002]Research on NB-IoT technology has been conducted by a related international standard organization. The purpose of the relevant research is to research technology of IoT terminals for improving indoor coverage improved by utilizing a cellular network, for supporting large-scale low-speed terminals, for low-latency sensitivity, for ultra-low terminal cost, for low power consumption, and for an optimized network architecture.[0003]Such an IoT terminal essentially requires low unit price and low power consumption for long-term use. Accordingly, an IoT terminal has many differences from a typical terminal employing existing LTE technology in terms of supported functionality.[0004]For example, unlike a typi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04W36/30H04W36/00H04W36/08H04W8/08H04W76/19H04W8/26H04W4/80H04W76/27H04W8/24
CPCH04W8/26H04W76/19H04W4/80H04W8/24H04W36/0033H04W8/08H04W76/27H04W36/08H04W36/305H04W36/0079H04W36/36H04W4/70
Inventor HONG, SUNG-PYOCHOI, WOO-JIN
Owner KT CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap